Art Donovan started playing professional football with the Baltimore Colts in 1950. He became one of the stars in an outstanding defense and was selected to five straight Pro Bowls for 1954 to 1958. The Colts won back to back championships in 1958 and 1959. He was selected to the Pro Football Hall of Fame in 1968. Art Donovan has hand autographed this Baltimore Colts Riddell Throwback 2bar mini helmet. JSA Hologram and Certificate of Authenticity.